Question

What is the solution to this system of linear equations?y − 4x = 72y + 4x = 2(3, 1)(1, 3)(3, −1)(−1, 3)

Answer 1

Answer:

The solution is the point $(-1,3)$

Step-by-step explanation:

we have

$y-4x=7$ ------> equation A

$2y+4x=2$ ------> equation B

Adds equation A and equation B

$y-4x=7\\2y+4x=2\\-------\\y+2y=7+2\\3y=9\\y=3$

Find the value of x

Substitute the value of y in the equation A

$y-4x=7$

$3-4x=7$

$4x=3-7$

$4x=-4$

$x=-1$

The solution is the point $(-1,3)$

Answer 2

Answer:

D. (−1, 3)

Step-by-step explanation:

looked it up